00449nam a2200169Ia 4500 66736 150514s9999 xx 000 0 und d 0743252527 PK-LaUMT 158.1 COV-S Covey, Sean The 7 habits of highly effective teenagers the ultimate teenage success guide Covey, Sean London,UK: Schuster, 1998 272 p. EN BK 71573 71573 0 0 0 0 01 01 2015-05-14 41 158.1 COV-S 91350 2025-08-21 09:48:37 2025-01-02 2015-05-14 BK